Relay PadPuls M4L Pulse Collector User Manual

GmbH, Stettiner Str. 38, D-33106 Paderborn
PadPuls M4L
Art.No.: IM002G
(Valid from M-Bus generation: $12)
Art.-No. IM002G:
4-channel pulse collector for wall / rail mounting
Contents
1 Functional description...................................................................................................2
2 Installation and Startup .................................................................................................3
2.1 Opening the case ...................................................................................................3
2.2 Activating ...............................................................................................................3
2.3 Connecting.............................................................................................................4
2.4 Mounting ................................................................................................................6
3 Parameterization using MBCONF ................................................................................7
3.1 Installation..............................................................................................................7
3.2 Operation ...............................................................................................................7
3.3 Sheet Info...............................................................................................................8
3.4 Sheets M4 Port1 to M4 Port4...............................................................................11
4 Notes on malfunctionings ...........................................................................................15
5 M-Bus Telegrams .......................................................................................................16
6 Technical Data............................................................................................................19
PadPuls M4L User Manual
24.09.01, Version 1.4
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GmbH, Stettiner Str. 38, D-33106 Paderborn
1 Functional description
The PadPuls M4L serves for the adaptation to the M-Bus system of consumption
measuring instruments, such as, current, gas or water meters. However, the meters to
be adapted must have a floating pulse output. Up to four impulse meters can
simultaneous be connected to the inputs of this device.
Optionally the user can activate a tariff function, by which energy or volume pulses are
accumulated in separate meter readings for primary and secondary tariffs. In this case a
floating signal for tariff switch is used at Port 2 and / or Port 4.
Each port or each tariff of the PadPuls M4L can be read on M-Bus using its own primary
and secondary address. The PadPuls M4L thus acts as four stand-alone M-Bus Slaves!
The user configures the pulse collector with the software MBCONF. The accumulated
pulses are converted into kWh, m3, J or other physical units. The user interface of
MBCONF allows the operator to get an easy access to the configuration. Alternatively
the communication and configuration can be done using the optical interface of the
pulse adapter. It is also suited for mobile reading with a handheld or laptop and an
optical reading head.
When connected to the M-Bus the PadPuls M4L is powered from the bus. A built-in
battery ensures that metering continues if the M-Bus is interrupted.
Another feature of the PadPuls M4L is the due-date function. Meter data are saved
separately at the preset due-date at 00:00 hour (day change to the due-date) by the
implemented clock with calendar function. The due-date can be changed without lost of
the already stored counters. Additionally the M-Bus Master can initiate an immediate
execution of the due-date function by sending of the so-called „Freeze“ command. A
„Freeze“ sent to all pulse collectors using the broadcast address 254 is helpful for
generating reading profiles of an M-Bus system. Afterwards the master software polls
the data of all meters.
The complete configuration data is saved into a non-volatile memory (EEPROM).
Additional security is provided by daily saving of meter readings into this EEPROM. In
case of M-Bus fail and empty battery the last saved data is restored on power up.
The configuration data can be protected against unauthorized manipulation. The
PadPuls M4L can therefore be switched to protection mode with a special M-Bus
telegram. Subsequent changes to device parameters cannot be made in this operating
mode. The protection mode can then only be disabled by opening the sealed housing
and pressing the unprotect pushbutton for minimum 4 seconds.
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2 Installation and Startup
2.1 Opening the case
The case cover can be removed from the lower housing half with the help of a small
screwdriver. The screwdriver is placed, as in the drawing, into the small opening at the
cover side. After light moving of the screwdriver in the displayed direction the cover can
be taken off.
2.2 Activating
Coming from factory the PadPuls M4L must first be activated. The housing must be
opened (see drawing) and the jumper has to be placed on both pins. Then battery
operation and data saving is activated on M-Bus failure. On the back of the PadPuls
M4L board there are the follwing control elements:
If the device is not used for a longer time, it is
advisable to deactivate battery operation by
removing the jumper to preserve the battery.
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2.3 Connecting
The following figure shows the link of four counters with impulse outputs to the PadPuls
M4L. We recommend to use 2-wire cables (twisted pair, NYM or j-Y(St)Y) with a max.
length of 10m. In any case it must be noted that the total capacity of the cable plus
impulse generator attached at any port may not exceed 2nF (optional 12nF with
activated “long pulse sampling”).
M-Bus
PadPuls M4L
001234,3
001234,3
001234,3
001234,3
m3
m3
m3
m3
•
If not all ports of PadPulse M4L are used, you should not attach a cable to the
respective unused port. The capacity of an open-circuited cable reduces the
lifetime of the battery in stand-alone operation (no M-Bus available).
•
If the pulse frequency is over 14 Hz, false countings can occur.
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
The following graph represents the diagram of connections in the tariff mode with two
counters and two tariff signal generators:
M-Bus
PadPuls M4L
Tariff B
001234,3
001234,3
m3
m3
Pulses B
Tariff A
Pulses A
The PadPuls M4L is supplied from M-Bus if it is available. In this normal state the
internal battery is then not loaded. Only when the M-Bus fails the battery takes over
automatically the supply. There is no lost of data and the counting function is continued.
The PadPuls M4L draws approximately 2.75mA current ( maximum 2 unit loads) from
the
M-Bus.
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2.4 Mounting
On the back of the housing there is a special mechanism for mounting the device on a
DIN rail according to DIN EN 50022. This mechanism can be removed, turned over and
fixed on the wall with two screws. Afterwards you can mount the device without using a
rail. The following figures show the two options:
Rail mounting
6
Wall mounting
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
3 Parameterization using MBCONF
The configuration of the device must be adapted by the customer to the respective
installation. The current version $12 of PadPuls M4L requires the use of the program
MBCONF for configuration. The older DOS version PADCON may not be used
anymore.
3.1 Installation
The software MBCONF for configuration of the pulse adaptor is a 32-bit application,
which can be executed on IBM-PC compatible computers under the operating systems
Windows 95 / 98 / NT 4.0. The desktop PC or laptop must have a free serial RS232C
interface to connect the M-Bus level converter. The PadPuls M4L to be parameterized
must be connected directly (i.e. as only M-Bus device) to the M-Bus output of the level
converter.
Please start the file “MBCONF_SETUP.EXE” from Windows Explorer or via “Start –
Execute” to install the software from version 1.40 up. Subsequently you select the
language of the installation procedure. The setup software can create a program group
and a link on the desktop on demand. You can then execute both versions for German
and English language either from start menu or desktop.
3.2 Operation
After program start the user operates the software according to the Windows
conventions with the mouse or the keyboard. If you stay with the mouse on a button or
an input field, then a hint to its function appears. Light-grey fields and boxes are not
capable for editing.
All input fields and buttons have an underlined letter. The function can be activated by
simultaneous pressing of the keys [ALT] and the respective letter. Within dialogs the
cursor can be moved with the keys [TAB] or [SHIFT][TAB ] forwards and back.
[SPACE ] activates or deactivates selection boxes. Multiple selection boxes (arrow at
the right edge) can be activated with [⇓]. The user then selects an entry with [⇓] and [⇑].
By pressing [RETURN] the selected entry is taken over. With [ESC] the selection box is
left without transfer.
The program is arranged as a sheet system. The sheet “Info” contains general options
of the communication with the M-Bus device to be configured. In this sheet the user can
select the serial port of the PC, the baudrate of the PC, the baudrate of the M-Bus
device and the M-Bus primary address which is used for communication. After a
successful connection with the M-Bus device, further manufacturer information is shown
in the sheet “Info” and additional device-specific sheets are displayed.
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3.3 Sheet Info
This sheet shows some photos of supported M-Bus devices from the product range of
the Relay GmbH, the PadMess GmbH and further manufacturer. Here are also links to
the Internet page, from which the current version of the program can be downloaded,
and to the email address for criticism and suggestions to the program.
The lower third of this card is likewise visible in every other card. Here the following
input fields and buttons are always attainable:
COM-Port
is the serial port of the PC to which the M-Bus level converter is
connected. The selected port will be saved in an INI file and will be
restored on startup. Therefore the COM-Port has to be configured
only once.
Baudrate
ist the transmission speed of the serial port of the PC used for
parameterization. Possible selections for this used M-Bus baudrate
are 300, 2400 or 9600 baud. Attention: Baudrates of more than
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
2400 baud are not supported by all M-Bus level converters which
are available on the market! The selected baudrate must be
identical to the baudrate of the M-Bus device. (see: “New M-Bus
Baudrate”). The PadPuls M4L supports the baudrates 300 and
2400 Bd.
New M-Bus
Baudrate
allows reprogramming the baudrate of the M-Bus device. The new
baudrate is sent to the M-Bus device after a change in the
appropriate selection box. If the M-Bus slave accepts this
command, it acknowledges the telegram with the single character
„$E5“ ($ for hexadecimal notation) using the old baudrate.
Afterwards the device switches to the new baudrate. This button is
not needed for the PadPuls M4L, since it automatically detects the
baudrate used by the master.
M-Bus Address
is the primary address of the connected M-Bus slave. In a direct
connection with only one slave you can use the broadcast address
254. Using this address every M-Bus device must answer
regardless of its own address.
Connect
to meter
is used to request data from the slave. The type of device is then
automatically recognized. The items “Manufact.”, “Generation”,
“Type” and “M-Bus State” will then be refreshed. New sheets are
generated depending on manufacturer and type of the M-Bus
device. A single sheet for each channel appears in case of PadPuls
M4L. The sheets are labelled “M4 Port1” for the first … “M4 Port4”
for the fourth channel.
Manufact.
is an item that shows the 3-letter manufacturer code after
successful reading (“Connect to meter”). The item is read only.
Generation
shows the software revision of the firmware of the connected MBus device. The item is read only.
Type
shows the type (here: PadPuls M4) of the connected device. This
item is read only.
M-Bus State
shows the M-Bus state of the connected device. This item is read
only.
ZVEI optical
mode
If this option is activated, devices with an optical interface and
protocol according to EN 1434-3 can be read and programmed
using an optical reading head (e.g. PadPuls M4 / M4L).
Autom. readout
The software always reads the data after writing, if this option is
activated (useful for checking the correct programming).
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Log-Window
The so-called log window is always visible. All M-Bus communication steps are logged
in this window. Data is displayed in hexadecimal notation. It is possible to mark outputs
in the log window and copy them with the keys “CTL-C” to the windows clipboard. Then
the data can be easily imported to any text editor for documentation. As soon as the
max. storage capacity of the window is achieved, no more data is logged. If you want to
log further, you must delete the logged data.
The following buttons are also always visible:
Erase log
clears all outputs inside the log window.
Exit
terminates the program and stores the current setting of serial port
(port no.) into the INI file.
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
3.4 Sheets M4 Port1 to M4 Port4
These sheet shows the current settings and values of the respectively pulse channel
(port) of the PadPuls M4L (in this example: Port 1). The following input boxes and
buttons are used to change the params of the pulse adapter:
Primary address
is the M-Bus address of the selected port. Values between 1 and
250 can be entered in this field for new assignment of the address.
After pressing the “Write” button the software programs this primary
address and further variable settings on this sheet into the M-Bus
device.
ID (sec. adr.)
is the 8 digit M-Bus ID (identification no.), which is also used for
secondary addressing of this port.
Medium
describes the measured medium of the connected meter.
Examples: Oil, Water, Heat, Electricity
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Multiplicator
is the pulse increment (multiplicator) of the connected meter. For
each registered pulse the device adds “multiplicator” to the counter.
The numerator can take values between 0 (no counting) and 99,
the denominator between 1 and 256.
Unit
is the physical unit of the counter and of the pulse increment. All
proper units including variants with power of ten from the DIN EN
1434-3 are offered in the selection list.
Counter
is the accumulated counter. It has to be related to the unit
mentioned above. The counter can be programmed equal to the
counter of the connected meter in a range of 0 to 99999999.
Current time
is the current date and time-of-day of the internal clock in the format
DD.MM.YY_hh.mm. This field can be only edited and modified in
the PadPuls, if the switch “Edit and change time” is activated. The
button “Read clock of PC” transfers once the current date and time
of the PC into this window. The time-of-day and the date always
apply to all ports of PadPuls M4L.
Due-date
is the last due-date (date of the last storage of the due-date
counter) in the format DD.MM.YY. This field is read only.
Due-date cnt.
is the counter which was saved at the due-date. This field is read
only.
Next
Due-date
is the next (future) due-date (date of the next storage of the
counter) in the format DD.MM.YY. The counter will be saved at
00:00, e.g. with due-date 01.01 at change from 31th of December
23:59 to 1st of January 00:00. This field can be edited and
programmed only, if the switch “Edit and change time” is marked.
The due-date always applies to all ports of PadPuls M4L.
State of ports
shows the current input state of all ports (a closed contact is
marked). This item is read only.
Write protection
is marked, if the device is protected against programming. Then
you cannot configure the adapter. The protection can be removed
after opening the sealable housing and pressing the “Unprotect”
pushbutton for a minimum of 4 seconds.
EEPROM error
is marked, if there was an error while reading the non-volatile
memory. In this case you must reconfigure the device.
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GmbH, Stettiner Str. 38, D-33106 Paderborn
Tariff A (P1/2)
is used for activation tariff mode on port 1 and 2. The tariff mode
will be selected after pressing the “Write” button, if the check box is
marked. Port 1 is then used as pulse input and port 2 is the tariff
switch. With an open tariff switch the pulses are accumulated to the
counter for port 1 (main tariff). With a closed tariff contact the
pulses increment the counter for port 2 (special tariff).
Tariff B (P3/4)
is used for activation tariff mode on port 3 and 4. The tariff mode
will be selected after pressing then “Write ” button, If the check box
is marked. Port 3 is then used as pulse input and port 4 is the tariff
switch. With an open tariff switch the pulses are accumulated to the
counter for port 3 (main tariff). With a closed tariff contact the
pulses increment the counter for port 4 (special tariff).
Long pulse
sampling
activates a longer charging of the contacts before sampling the
inputs. This allows higher capacitors and / or many pulse
generators with So interface (photocoupler with capacitors) to be
connected. On delivery the extended pulse sampling is activated.
The lifetime of battery is increased for about 15% if this feature is
not used.
Edit and change activation of this check box allows editing and programming of the
“Current time” and “Next due-date”. The checkbox is deactivated
time
automatically after successful configuration with “Write”.
Freeze
transmits a command to the PadPuls M4L telling it to freeze the
counters. The PadPuls M4L then copies the current counter to the
“Due-date counter” and the current date to the (last) “Due-date”.
The storage is done for all ports simultaneously. This the same
behaviour as at due-date. The freeze command can be used with
the broadcast address 255 to order all PadPuls to save the current
counters. Then the M-Bus master has enough time to read all
meters and get values of the same time (reading profiles).
Read clock of PC
once gets the current date and time from the clock of the PC and
transfers it into the item “Current time”.
Write protect
Transmits a command to the PadPuls M4L to activate write protect.
The PadPuls M4L then allows no further configuration. It is
protected against unnoticed manipulation.
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Read
reads the M-Bus device and refreshes the data on the selected
sheet.
Write
sends the current options to the pulse converter, which saves this
data into the non-volatile memory. The PadPuls M4L changes the
options only if the write protect is deactivated. It is recommended to
read the data after writing and check it.
Notes:
1. The variables „Current time“, „Next due-date“, „Write protection“, „Long pulse
sampling “ and the command „Freeze“ always apply to all ports. Therefore you need
to edit these items only in one sheet. The write protect should be activated after
successful configuration of all ports.
2. Please press first the button „Connect to meter“ after connecting a new M-Bus
device. Afterwards all sheets are refreshed.
3. Examples for configuration of pulse increment and unit:
•
Water meter with counter = 45120 l and 1 Pulse = 10 l:
Choice 1: Unit = 10 l, Multiplicator = 1 / 1, Counter = 4512 ( x 10 l)
Choice 2: Unit = 1 l, Multiplicator = 10 / 1, Counter = 45120 ( x 1 l)
•
Electricity meter with counter = 78346 kWh and 64 pulses / kWh:
Choice: Unit = 1kWh, Multiplicator = 1 / 64, Counter = 78346 ( x 1kWh)
•
Electricity meter with counter = 112,345 kWh and 1000 pulses / kWh:
Choice: Unit = 1Wh, Multiplicator = 1 / 1, Counter = 1123454 ( x 0,001Wh)
4. With activated tariff option the pulses are evaluated with the adjustments of the
respective port. Therefore you should take care that both ports have the same pulse
increment and unit.
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GmbH, Stettiner Str. 38, D-33106 Paderborn
4 Notes on malfunctionings
Error
No function in battery mode
No function after installation, although
the battery jumper is placed and the MBus is connected
Pulses are not counted or wrong
-
-
-
PadPuls M4L User Manual
Possible source of error
Battery jumper is not placed
Battery is empty (voltage min. 2.9V)
After placing the jumper a reset is
generated using an R/C combination.
It is possible that the reset was not
correct. Please lift the jumper, wait
about 10 seconds and place it again.
Check connection of the pulse meter
Activate the „extended pulse
sampling” if your system has:
a) long cables (> 10m)
b) high capacitors
c) electronic S0 interface
Check configuration (especially pulse
increment and tariff mode)
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5 M-Bus Telegrams
Position
1
2
Name:
Start
Value (hex):
68
2F
13
14
15
Man1
Gen
Med
3
4
5
6
7
8
9
10
11
12
Start
C
A
CI
ID0
ID1
ID2
ID3
Man0
2F
68
08
16
17
18
19
20
21
TC
State
Sig0
Sig1
DIF1
VIF1
00
00
0C
Length Length
48
72
AC
22
23
24
25
Stand0 Stand1 Stand2 Stand3
28
29
30
31
32
33
34
35
36
37
VIF2
Date0
Date1
Date2
Date3
DIF3
VIF3
LeStD0
LeStD1
DIF4
VIF4
42
6C
46
47
48
49
50
51
52
53
DIF6
Info
Numer
ator
Denomi
nator
PStat
CS
Stop
41
42
43
StStn3
DIF5
VIF5
42
EC
44
45
VIFE5 StDat0 StDat1
7E
DIF2
04
27
6D
26
38
39
40
StStn0 StStn1 StStn2
4C
0F
16
RSP_UD telegram
A:
ID0-3:
Man0-1:
Gen:
Med:
TC:
State:
VIF1=VIF4:
Stand:
Date:
LeStD:
StStn:
StDat:
Info:
Numerator:
Denominator:
PStat:
16
primary address
identification no. for secondary addressing
manufacturer code
revision of firmware (at this time $12, reserved range: $10 .. $1F)
medium
transmission counter (number of transmitted RSP_UD)
most significant bit set (bit 7) -> write protected
bit 3 set (permanent error)
-> error in EEPROM data
selected VIF (value information field -> physical unit)
current counter
current date (IEC870-5-4: data type F)
last due-date, date of the due-date counter (IEC870-5-4: data type G)
due-date counter
next (future) due-date
1 byte with information about tariff and sampling method)
numerator of pulse increment(1..99)
denominator of pulse increment (1..255, 0 -> 256)
Numerator
1 Pulse =
∗ VIF
Deno min ator
state of inputs (current input state of the ports)
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
Byte 48 (Info)
Bit
7
6
5
4
3
2
1
0
Value
(bin)
x
Sampling
Tariff B
Tariff A
0
0
Select1
Select0
Select:
Tariff A:
Tariff B:
Sampling:
number of the port, for which the data is valid
00: Port1, 01: Port2, 10: Port3, 11:Port4
tariff A (Port 1 = count input, Port2 = counter / tariff signal)
0: tariff off (Port2=count input), 1: tariff on (Port2=tariff signal)
tariff B (Port 3 = count input, Port4 = counter / tariff signal)
0: tariff off (Port3=count input), 1: tariff on (Port4=tariff signal)
duration of a sampling
0: short (0.5ms), 1: long (1.5ms)
Position
1
Name:
Start
Value (hex):
68
13
14
15
16
PAdr
DIF3
VIF3
ID0
07
79
28
29
27
Stand1 Stand2 Stand3
41
Opt.
42
43
Numer Deno
ator minat.
2
3
4
5
6
7
8
9
10
11
12
Start
C
A
CI
DIF1
VIF1
Anw.
DIF2
VIF2
68
53
51
01
7F
01
7A
17
18
19
20
21
22
23
24
25
26
ID1
ID2
ID3
Man0
Man1
Gen
Med
DIF4
VIF4
Stand0
AC
48
39
40
Length Length
0C
30
31
32
33
34
35
36
37
DIF5
VIF5
Date0
Date1
Date2
Date3
DIF6
VIF6
04
6D
42
6C
44
45
CS
Stop
38
StDat0 StDat1
DIF7
0F
16
SND_UD telegram (Abbreviations see RSP_UD)
Port:
seleced port (used with address 254)
0=Port1, 1=Port2
PAdr:
new primary address of the port
Numerator: Numerator of pulse increment (1..99, BCD format)
Denominator: Denominator of pulse increment (1..255, 0 -> 256, binary fromat)
Option:
Options (tariff, sampling). Coding like Info (Byte 48 RSP_UD).
The PadPuls M4L analyzes the individual data records on the basis of the DIF.
Therefore the order of the records is allowed to vary. It is also possible to transmit only
parts of the SND_UD specified above. The manufacturer-specific appendix of the
telegram is always first analysed and must be included therefore in any case. The
optional record „DIF1 VIF1 Anw“ selects a port to be addressed with global address
254. This must be always the first record in the telegram.
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Position
1
Name:
Start
Value (hex):
68
2
3
Length Length
05
05
4
5
6
7
8
9
10
11
Start
C
A
CI
DIF
Prot.
CS
Stop
68
53
51
0F
55
16
Protection-Telegram
This telegram activates the write protection.
Position
1
Name:
Start
Value (hex):
68
2
3
4
5
6
7
8
9
10
11
Start
C
A
CI
DIF
Anw.
CS
Stop
05
68
53
51
0F
3
4
5
6
7
8
9
10
11
Start
C
A
CI
DIF
VIF
Anw.
CS
68
53
51
01
7F
Length Length
05
16
Select telegram (old method)
Position
1
Name:
Start
Value (hex):
68
2
Length Length
06
06
12
Stop
16
Select telegram (new method)
Anw. specifies the Port of the PadPuls M4L, which answers to a REQ_UD2 at address
254:
Port1: Anw=00
Port2: Anw=01
Port3: Anw=02
Port4: Anw=03
Position
1
Name:
Start
Value (hex):
68
2
3
Length Length
03
03
4
5
6
7
8
9
Start
C
A
CI
CS
Stop
68
53
54
16
Freeze telegram
On reception of this telegram the pulse adapter saves the current counters of all ports
into the due-date counters and the current date into the due-date.
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PadPuls M4L User Manual
GmbH, Stettiner Str. 38, D-33106 Paderborn
6 Technical Data
Case
Mounting
DIN rail according to DIN EN 50022 or wall
Material
ABS plastic
Colour
light-grey (similar RAL 7035)
WxHxD
(55 x 75 x 105) mm
Protection type
IP40
Environment
Operating temperature
0 to 55 °C
Storage temperature
-20 to 60 °C
Humidity (non condensing)
10% to 70%
Specifications to contacts of pulse generators
Potential
floating, insulation to earth > 1MΩ
Resistance
open > 1MΩ, closed < 2kΩ
Maximum capacity (incl. cable)
2nF (short sampling), 12nF (long sampling)
Minimum contact duration
30 ms
Minimum pause between contacts 30 ms
Maxium pulse frequenz
14 Hz
Specifications to contact of tariff generator
Potential
floating, insulation to earth > 1MΩ
Resistance
open > 1MΩ, closed < 2kΩ
Maximum capacity (incl. cable)
2nF (short sampling), 12nF (long sampling)
Possible signal wave forms
50 / 60 Hz or static signals
PadPuls contact input:
Contact voltage
2.5V to 3.6V
Contact current
30 µA
Guaranteed debounce time
5.0 ms
Connection cable
maximum 10 m (Twisted Pair recommended)
PadPuls M4L User Manual
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GmbH, Stettiner Str. 38, D-33106 Paderborn
Current consumption
Principle
remote power supply from M-Bus with
automatic changeover to battery on bus failure
Bus operation
max. 3.0 mA ( 2 unit loads),
no battery loading
Battery standard
optional
Lithium 3V, type 2/3 AA, 1800mAh, exchangable
Lithium 3V, type C, 5000mAh
Battery operation
at 25°C ca. 60µA (long sampling)
Battery lifetime in
battery operation
standard battery:
optional battery:
Short sampling
Battery lifetime is lengthened by ca.15% if short
sampling is activated.
at 25°C ca. 3 years
at 25°C ca. 8 years
M-Bus: physical characteristics
M-Bus quiescent current
typ. 2.75 mA, max. 3.0 mA (2 unit loads)
Space(0-Bit) current
quiescent current (1.4 mA) + typ. 13 mA
M-Bus Interface
TI TSS721 with 2 x 215Ω protection resitors
M-Bus Protocol
Standard
EN1434-3
Transmission speed
300, 2400 baud with automatic detection
Addressing
Primary- and secondary addressing with wildcards,
per input port : 1 primary and 1 secondary address
Supported functions
SND_NKE, REQ_UD2, SND_UD,
ignores FCB-Bit (according to EN1434-3)
Data structure
variable structure, Low-Byte-First (CI: 72h)
length = 53 Bytes
1. data record: counter
2. data record: date and time
3. data record: last due-date
4. data record: last due-date counter
5. data record: next due-date
6. data record: manufacturer specific data
Configuration telegram
Identification no., medium, primary address, pulse
increment, pulse unit, initial counter, tariff mode,
date / time and next due-date:
can be parameterized via SND_UD through M-Bus
or optical interface
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